Yellow - Rest
5 AP Mantis helps her allies by providing them with a little rest. Give burst of health to ally.
<Passive> Whenever a stunned ally recovers some health, they become un-stun.

Purple - Compulsion
8 AP Mantis compels her opponent through her telepathic skill. She drops a 1-CD on a basic tile. Opponent will match that color automatically and if they can't suffer medium damage.

Comments

@Kolence made a good point about Kitty being able to get rid of 1/cd tile. However, it also made me think, instead you could make Purple this:

8 AP - Mantis drops a 1/repeater. Opponent will continue to match that color every turn until they can't and then they suffer medium damage.

It looks like a better power and will be pretty advantageous for the team. Especially when paired with Doom5 for example and you force the player to collect Black they can't use and you also get black.

I think you'd want it to be a 2 turn repeater at most, though. 1-turn could leave the opponent with like 5 turns in a row with no actions (sure they're getting AP, but it doesn't matter if they can't fire powers and you're killing them.) That would be very un-fun to play against.